Roller Curtain - Made from steel laths, 76mm x 20swg. Cast iron wind locks are fitted to retain the shutter curtain within the guide channels in a fire situation.

Bottom Rail -Formed from mild steel flat bar & angle depending on door width, bolted back to back through a centrally located galvanised steel flat quirk.

Side guides and Angles -Steel section of depths ranging from 65mm to 100mm dependent upon the application. Steel angles of suitable size and thickness are supplied to support the side guides and to form a secure fixing to the structure.

Roller Barrel - Is manufactured from steel tube of a suitable size and thickness for the application and contains springs to counter-balance the shutter. In a fire station, a soldered fusible link melts at 72°C, releasing the shutter via a drop-bar and a ratchet and pawl mechanism.

Operation - Hand chain operated shutters are fitted with a gearbox unit and a brake release cord, to close the shutter. The gearbox contains a controlled descent mechanism. A fusible link backup facility is provided as standard. Electrically operated shutters are fitted with a motor/gearbox.The gearbox contains a controlled descent mechanism and a brake release cord to close the shutter in the event of a power failure.